List of top Fluid Mechanics and Thermal Sciences Questions on Fluid statics asked in GATE ME

A hydraulic crane supports a mass of 500 kg with its piston-cylinder actuator, inclined at 60° with horizontal, as shown in the figure below. The diameter of the piston is 30 cm and gravitational acceleration is 10 m/s\(^2\). Neglecting mass of the piston, the reading of the pressure gage in kPa (gage) is

A uniform wooden rod (specific gravity = 0.6, diameter = 4 cm, length = 8 m) is hinged at A at waterline. A lead sphere (specific gravity = 11.4) is attached at the free end to keep the rod submerged horizontally. Find the radius of the lead ball (in cm, round to 2 decimals).